Tommy Edison, who has done many videos about what it's like to have been blind since birth, recently asked people to describe colors to him. And the result says a lot about our emotional connection to color, which can differ from the reality a fair bit.

Tommy Edison, our favorite blind-since-birth YouTube-er, is back to give us yet another glimpse into a world where the mere concept of light is unfathomable. And this time, he's doing it while sniffing markers.

Tommy Edison, the positively radiant blind film critic, is back to explain how a blind person uses everybody's favorite instant photo sharing service: Instagram. He's explained how he used his iPhone before and what color meant to him but his use of Instagram might be the most impressive thing yet. Reminder: Tommy…

Tommy Edison, the joyous blind film critic, can't see. But that doesn't stop him from using an iPhone 4S. In fact, thanks to Siri and some of the Accessibility features, he can check out YouTube videos, write Tweets and do everything you do.